feat(sql): WINDOW without ORDER BY

Rules: - ALLOWED for ROWS-type WINDOW - NOT ALLOWED for RANGE-type WINDOW with offset PRECEDING/FOLLOWING - NOT ALLOWED for WINDOW with attribute EXCLUDE CURRENT_TIME Without ORDER BY, rows are processed in an unspecified order.
4paradigm · Oct 17, 2023 · b30b42d · b30b42d
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diff --git a/cases/function/window/error_window.yaml b/cases/function/window/error_window.yaml
@@ -17,15 +17,17 @@ debugs: []
 version: 0.5.0
 cases:
   - id: 0
-    desc: no order by
+    desc: RANGE-type WINDOW with offset PRECEDING/FOLLOWING requires ORDER BY
     inputs:
       - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ]
         indexs: [ "index1:c8:c4" ]
         rows:
           - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"]
     sql: |
-      SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0} WINDOW w1 AS (PARTITION BY {0}.c8 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);
+      SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0}
+      WINDOW w1 AS (PARTITION BY {0}.c8 ROWS_RANGE BETWEEN 2 PRECEDING AND CURRENT ROW);
     expect:
+      msg: RANGE/ROWS_RANGE-type FRAME with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column
       success: false
   - id: 1
     desc: no partition by
@@ -301,3 +303,29 @@ cases:
       SELECT id, c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM {0} WINDOW w1 AS (PARTITION BY {0}.c33 ORDER BY {0}.c7 ROWS_RANGE BETWEEN 2s PRECEDING AND CURRENT ROW);
     expect:
       success: false
+  - id: 17
+    desc: ROWS WINDOW + EXCLUDE CURRENT_TIME requires order by
+    inputs:
+      - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ]
+        indexs: [ "index1:c8:c4" ]
+        rows:
+          - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"]
+    sql: |
+      SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0}
+      WINDOW w1 AS (PARTITION BY {0}.c8 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_TIME);
+    expect:
+      msg: WINDOW with EXCLUDE CURRENT_TIME requires exactly one ORDER BY column
+      success: false
+  - id: 18
+    desc: RANGE WINDOW + EXCLUDE CURRENT_TIME requires order by
+    inputs:
+      - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ]
+        indexs: [ "index1:c8:c4" ]
+        rows:
+          - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"]
+    sql: |
+      SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0}
+      WINDOW w1 AS (PARTITION BY {0}.c8 ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_TIME);
+    expect:
+      msg: WINDOW with EXCLUDE CURRENT_TIME requires exactly one ORDER BY column
+      success: false
diff --git a/cases/query/window_query.yaml b/cases/query/window_query.yaml
@@ -901,3 +901,234 @@ cases:
         200, 1, 1
         300, 0, 0
         400, 2, 2
+
+  # ======================================================================
+  # WINDOW without ORDER BY
+  # ======================================================================
+  - id: 24
+    desc: ROWS WINDOW WITHOUT ORDER BY
+    mode: batch-unsupport
+    inputs:
+      - name: t1
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10000
+          5, 400, 15000
+          6, 400, 40000
+    sql: |
+      select id, count(ts) over w as agg
+      from t1
+      window w as (
+        partition by gp
+        rows between 2 open preceding and current row
+      )
+    request_plan: |
+      PROJECT(type=Aggregation)
+        REQUEST_UNION(partition_keys=(), orders=, rows=(, 2 OPEN PRECEDING, 0 CURRENT), index_keys=(gp))
+          DATA_PROVIDER(request=t1)
+          DATA_PROVIDER(type=Partition, table=t1, index=idx)
+    cluster_request_plan: |
+      SIMPLE_PROJECT(sources=(id, agg))
+        REQUEST_JOIN(type=kJoinTypeConcat)
+          SIMPLE_PROJECT(sources=(id))
+            DATA_PROVIDER(request=t1)
+          PROJECT(type=Aggregation)
+            REQUEST_UNION(partition_keys=(), orders=, rows=(, 2 OPEN PRECEDING, 0 CURRENT), index_keys=(gp))
+              DATA_PROVIDER(request=t1)
+              DATA_PROVIDER(type=Partition, table=t1, index=idx)
+    expect:
+      columns: ["id int", "agg int64"]
+      order: id
+      data: |
+        1, 1
+        2, 2
+        3, 1
+        4, 2
+        5, 2
+        6, 2
+  - id: 25
+    desc: RANGE WINDOW WITHOUT ORDER BY
+    mode: batch-unsupport
+    inputs:
+      - name: t1
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10
+          5, 400, 15000
+    sql: |
+      select id, count(ts) over w as agg
+      from t1
+      window w as (
+        partition by gp
+        rows_range between unbounded preceding and current row
+      )
+    request_plan: |
+      PROJECT(type=Aggregation)
+        REQUEST_UNION(partition_keys=(), orders=, range=(, 0 PRECEDING UNBOUND, 0 CURRENT), index_keys=(gp))
+          DATA_PROVIDER(request=t1)
+          DATA_PROVIDER(type=Partition, table=t1, index=idx)
+    cluster_request_plan: |
+      SIMPLE_PROJECT(sources=(id, agg))
+        REQUEST_JOIN(type=kJoinTypeConcat)
+          SIMPLE_PROJECT(sources=(id))
+            DATA_PROVIDER(request=t1)
+          PROJECT(type=Aggregation)
+            REQUEST_UNION(partition_keys=(), orders=, range=(, 0 PRECEDING UNBOUND, 0 CURRENT), index_keys=(gp))
+              DATA_PROVIDER(request=t1)
+              DATA_PROVIDER(type=Partition, table=t1, index=idx)
+    expect:
+      columns: ["id int", "agg int64"]
+      order: id
+      data: |
+        1, 1
+        2, 2
+        3, 1
+        4, 2
+        5, 3
+  - id: 26
+    desc: RANGE-type WINDOW WITHOUT ORDER BY + WINDOW attributes
+    mode: batch-unsupport
+    inputs:
+      - name: t1
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10000
+          5, 400, 15000
+      - name: t2
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10000
+          5, 400, 15000
+    sql: |
+      select id,
+        count(ts) over w1 as agg1,
+        count(ts) over w2 as agg2,
+        count(ts) over w3 as agg3,
+        count(ts) over w4 as agg4,
+        count(ts) over w5 as agg5,
+        count(ts) over w6 as agg6,
+        count(ts) over w7 as agg7,
+      from t1
+      window w1 as (
+        PARTITION by gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),
+      w2 as (partition by gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW),
+      w3 as (PARTITION BY gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW MAXSIZE 1),
+      w4 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW),
+      w5 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW),
+      w6 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW MAXSIZE 2 INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW),
+      w7 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW)
+    expect:
+      columns: ["id int", "agg1 int64", "agg2 int64", "agg3 int64", "agg4 int64", "agg5 int64", "agg6 int64", "agg7 int64"]
+      order: id
+      data: |
+        1, 1, 0, 1, 3, 2, 2, 2
+        2, 2, 1, 1, 3, 2, 2, 3
+        3, 1, 0, 1, 4, 3, 2, 3
+        4, 2, 1, 1, 4, 3, 2, 4
+        5, 3, 2, 1, 4, 3, 2, 5
+  - id: 27
+    desc: ROWS-type WINDOW WITHOUT ORDER BY + WINDOW attributes
+    mode: batch-unsupport
+    inputs:
+      - name: t1
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10000
+          5, 400, 15000
+      - name: t2
+        columns:
+          - id int
+          - gp int
+          - ts timestamp
+        indexs:
+          - idx:gp:ts
+        data: |
+          1, 100, 20000
+          2, 100, 10000
+          3, 400, 20000
+          4, 400, 10000
+          5, 400, 15000
+    sql: |
+      select id,
+        count(ts) over w1 as agg1,
+        count(ts) over w2 as agg2,
+        count(ts) over w3 as agg3,
+        count(ts) over w4 as agg4,
+      from t1
+      window w1 as (
+        PARTITION by gp
+        ROWS BETWEEN 2 PRECEDING AND CURRENT ROW),
+      w2 as (partition by gp
+        ROWS BETWEEN 2 PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW),
+      w3 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS BETWEEN 2 PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW),
+      w4 as (
+        UNION (select * from t2)
+        PARTITION BY gp
+        ROWS BETWEEN 3 PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW)
+    expect:
+      columns: ["id int", "agg1 int64", "agg2 int64", "agg3 int64", "agg4 int64"]
+      order: id
+      data: |
+        1, 1, 0, 3, 2
+        2, 2, 1, 3, 2
+        3, 1, 0, 3, 3
+        4, 2, 1, 3, 3
+        5, 3, 2, 3, 3
diff --git a/hybridse/include/node/sql_node.h b/hybridse/include/node/sql_node.h
@@ -1166,6 +1166,9 @@ class FrameBound : public SqlNode {
     int64_t GetOffset() const { return offset_; }
     void SetOffset(int64_t v) { offset_ = v; }
 
+    // is offset [OPEN] PRECEDING/FOLLOWING
+    bool is_offset_bound() const;
+
 
     /// \brief get the inclusive frame bound offset value that has signed symbol
     ///

diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h
@@ -200,9 +200,9 @@ class Range : public FnComponent {
     const bool Valid() const { return nullptr != range_key_; }
     const std::string ToString() const {
         std::ostringstream oss;
-        if (nullptr != range_key_ && nullptr != frame_) {
+        if (nullptr != frame_) {
             if (nullptr != frame_->frame_range()) {
-                oss << "range=(" << range_key_->GetExprString() << ", "
+                oss << "range=(" << node::ExprString(range_key_) << ", "
                     << frame_->frame_range()->start()->GetExprString() << ", "
                     << frame_->frame_range()->end()->GetExprString();
 
@@ -216,7 +216,7 @@ class Range : public FnComponent {
                 if (nullptr != frame_->frame_range()) {
                     oss << ", ";
                 }
-                oss << "rows=(" << range_key_->GetExprString() << ", "
+                oss << "rows=(" << node::ExprString(range_key_) << ", "
                     << frame_->frame_rows()->start()->GetExprString() << ", "
                     << frame_->frame_rows()->end()->GetExprString() << ")";
             }
@@ -578,7 +578,7 @@ class PhysicalRequestProviderNode : public PhysicalDataProviderNode {
                                  PhysicalOpNode **out) override;
 
     virtual ~PhysicalRequestProviderNode() {}
-    virtual void Print(std::ostream &output, const std::string &tab) const;
+    void Print(std::ostream &output, const std::string &tab) const override;
 };
 
 class PhysicalRequestProviderNodeWithCommonColumn
@@ -846,9 +846,7 @@ class WindowOp {
         std::ostringstream oss;
         oss << "partition_" << partition_.ToString();
         oss << ", " << sort_.ToString();
-        if (range_.Valid()) {
-            oss << ", " << range_.ToString();
-        }
+        oss << ", " << range_.ToString();
         return oss.str();
     }
     const std::string FnDetail() const {

diff --git a/hybridse/src/node/sql_node.cc b/hybridse/src/node/sql_node.cc
@@ -2099,6 +2099,11 @@ void FrameBound::Print(std::ostream &output, const std::string &org_tab) const {
     }
 }
 
+bool FrameBound::is_offset_bound() const {
+    return bound_type_ == kPreceding || bound_type_ == kOpenPreceding || bound_type_ == kFollowing ||
+           bound_type_ == kOpenFollowing;
+}
+
 int FrameBound::Compare(const FrameBound *bound1, const FrameBound *bound2) {
     if (SqlEquals(bound1, bound2)) {
         return 0;

diff --git a/hybridse/src/plan/planner.cc b/hybridse/src/plan/planner.cc
@@ -18,7 +18,6 @@
 
 #include <algorithm>
 #include <map>
-#include <random>
 #include <set>
 #include <string>
 #include <utility>